On Mon, 12 Nov 2012 21:36:17 +0000 Arvid Brodin <[email protected]> wrote:
> Adds /proc/<pid>/text_md5sum which, when read, calculates an md5sum over > the process' text segment. This can detect some cases where the system RAM > has been disturbed by e.g. ESD or cosmic radiation (on systems where ECC > is not available). It might also detect some accidental or malicious > modifications of executables, where the perpetrator has not bothered to > cover up the tracks. I thought the review comments regarding the earlier patch were rather fatal, sorry. > + Read /proc/<pid>/text_md5sum to get the kernel to perform an MD5 > + checksum over the process' text segment and print the result. This > + can detect some cases where the system RAM has been disturbed by > + e.g. ESD or cosmic radiation (on systems where ECC is not available). > + It might also detect some accidental or malicious modifications of > + executables, where the perpetrator has not bothered to cover up the > + tracks. And that doesn't seem to help much, really. .text is only a small part of a process's VM and corruption of data, bss, heap or stack is just as bad. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
